Metal working machine



April 25, 1933. G. F. YAGER 1,905,203

METAL WORKING MACHINE Filed July 14, 1930 4 sheets-sheet 1 April 25,1933. Q F YAGER 1,905,203

METAL WORKING MACHINE Filed July 14, 1930A 4 sheets-sheetA 2 INVENTOR@607799 -F Vaya?.

BY m7@ El E- ATTORNEYS April 25,1933.

G. F. YAGER METAL WORKING MACHINE 4 Sheets-Sheet .I5

Filed July 14, 1930 INVENTOR Gear' e 7:.' )447er 7 @may ATTORNEYS Apr'il25, 1933. G. F. YAGER METAL WORKING MACHINE 4 Sheets-Sheet 4 Filed July14, 1930 and cams;

Patented Apr. 25, 1933 i UNITEosrATss GEORGE r; YAGEnyOF TOLEDO, 0310,:AssIGNORzTO .THE BUNTING BRASS ieianolvznv COMPANY, or 'roI.n1O,OHIO,YA'` -oORIVSOBarronfor OHIO 1 METAL WORKING MACHINE Applicationined .Tuly k14,

This inventionrelates generally to' metal Working machines such asdrilling and broaching machines, and consists of lcertain Ynovelfeatures of construction, combinations and arrangements of partsthat'will'be herenafter' more fully described and particularly pointedout in the appended claims.` In the'accompanying drawings: Figure 1 risa fragmentary side elevation of a machine embodying 4my invention;Y'Figure 2 is afragmentary end elevation thereof; t I Figure3 is anelevation of the cam shaft Fgufe 4 iS a top plan view Vof a slightlymodified construction; i

Figure 5 is a fragmentary side elevation of the construction illustratedin. Eigure 4; Figure 6 is a fragmentary end elevation of theconstruction illustrated vin F igures4 and 5;

Figure 7 is a fragmentary vertical sectional view through the' machine.

.7 are inverted L stripssecured by bolts Sito raised portions 9 of theframe 6 and serving the dual function of guides and clamps for the heads2 and 3 respectively. Thus when the bolts 8 are'loosened the'heads 2 and3 may be adjusted in the guides 7 relative to ened the heads 2- and 3will be Aeffectively held by the strips 7 in adjustedfposition.

410 and 11 respectively are rotating spin-v dles journaled` in bearingsin the' heads2 14 and 15 respectively; 16 and 17 respective- `ly arecaps threaded upon the spindles 1 0 andV 11 respectively at the innerends thereof and provided at their innerends Withconi-V cal faces 18 and19 respectively; and 2O and 21 respectively are collets slidably mountedin the spindles 10 and 11 and provided at theirinner ends with conicalfaces V221 and 1936. seriaifivt. 465,907. i y n 23 respectivelyengageable'with the conical faces 18 and 19 of the caps 16 and l17 Asshown, the collet`s20 and 21 havey longitudinally extendingslot's`24'and25 respectively and'jwork engaging gripping [surfaces 2655and 27 respectively. Y28 and-"29`respectivelyv* "are hardened sleevesslidable withinfthe spindles :'10 and 11 respectively *and having thel'spindles '10 and 11 respectively vand having portions 36 and 37respectively'*over- 65f lappingl and slidably engagingthe bases 33c and39 respectively of L-sha`ped rabbets'in Y the hardened sleeves :28 V'and29:v Preferably. the portions 30 and 31 respectively of "'thesleeves 28and4v 29' andthe portions 36H?0 and 37 respectivelyV of the rains V34and vhave conical faces 440;41,"42 and 43 respectively.Y 44 and45respectively` are coil Referring now to the drawings, listhel vbase orframe of the machine; v2 and 3 *respectively are spindle heads slidablymounted upon the top 6 of the frame; and

springs sleeved about reduced portions 46 and 51' respectively [areAspring followers slidably mounted upon the reduced portions .46' and 47and abutting the outer endsfof Athe springs 44fand 45'; 5OSand 51"respec-` 80 tively are adjusting nuts for the springs 44' `and 45; 52andV 53 respectively are 'dog jhol'dcrs upon the' spindles 10 andll'respeceach other;rand when thelooltsv are tight- "slots 54 i and 55-tively at thevouter'ends thereof and having `dogs pivotedfin' theslots54 and 55 respec# 'l 'tively vofthetubular dog`holders`52 and '53andphaving heelportions v57; engaging the spring followers v5() and51;"58,' 59 and60v respectively arejfadjusting nuts for the dogholders`52 and 53 respectively;62-and respectively "are dog engagingcollars upon the tubularjdog zh olders'52 and 53 respec-V tively andhavingv peripheral grooves/'or channels 64 and 65 respectively therein;66 95 "andk Q67 respectively fare levers pivoted inter? mediate theirends uponlaterally projecting Alugs 68 Vand 69' respectively ofthehea'ds2 and 3*, and 7 Oand 71 respectively are rollers carriedrby the levers66and 67 'at the upper 19 yrespectively therein; 56 are 85 ends thereofand engaging the side walls of the grooves 64 and'65 respectively in thecollars 62 and 63.

In the present instance the castings to be drilled are fed onto and`travel longitudinally of downwardly and inwardly inclined chut-es 72and 73 respectively into engagement with substantially L-shaped stops 74and 75 respectively from whichthey are re-V moved laterally by.v"meansof drills 76- and 77 respectively into the collets 20 and 21.

As shown, the chutes 72 and 73rare boltedl to brackets 78 and 79slidably mounted upon the raised portions 9 of the frame' top 6.Preferably vspacers 8 0 and 81 respectively are used betweenwthe raisedportions 9 of Vthe frame and therbases of the brackets 78 and 79 so thatthe lower ends of the latter l *will bev atthe proper elevation Vwithrespect to the drills-76 and 77 v Any suitable means such as the bolts82 having inverted T shapedv heads 83 slidably v'engagingcorrespondingly shaped grooves: 84; in theraised portions 9 ofthe frametopV 6 may be employed for adjustably connecting lthe chute vbrackets 78and 79 respectively tor the frame. The stops 74 and 75 have dependingportions `8.6 and 87 respectivelyvbolted to the brackets 78 and79;:while thefdrills 76 land 77 are arranged invk stepped relation `upona carriage 88 slidably mountedupon a raised portion 89 ofthe top 6 ofthe frame. l Preff erably the drills 76 and 77 are clamped by plates 90and 91 against a plate 92 bolted` tothe carriage 88. y i Y 93 is a rackbolted tothe under face of the carriage 88; and 94 is a gear sectormounted upon a stub shaft 95. ournaled in a bearing respectivelyvterminally connected 96 secured tothe frame 1 at one siderthere-y of.97 is a lever rigid with the gea-r sector 94 and extending downwardlytherefrombe neath the stub shaft 95; 98 is a lever secured at its lowerend 4.to a stub shaft 99 journaled in a bearing 100 secured'to the frame1 at one side thereof; and 101 and 102 respectively are link .sectionsconnected together by shearable pins 1 03 and 104 respectively andhaving end portions 105 and 106 levers 97 and 98 respectivelyadjacentlthe respectively'inthe heads.

Y109 is acarn shaft'ournaled in bearings 110 and 111 respectively uponthel frame;

112, 113V and V114 are cams upon'the camv shaft 109 and having camgrooves 115, 116

and 117 respectively therein; 118, V119 and n I caps 16 and' 17' so thatthe grippingL surl120 respectively are cani rollers engaging the ed tobe driven to the i' grooves 115, 116 and 117; island' 122 re! spectivelyare pins projecting from the rollers 118 and 119; 124 is a sectionallink terminally connected to the pin 121 and to the lever 66; 125 is asectional link terminally connected to the pin 122 and to the lever 67;y and 126 is a pin projecting from the cam roller 120 and secured tothe ,lever 98adjacent the Afree endthereof. 127 Yisa-driveshaftjournaled in bearings 128 and 129 upon the frame; 130 is astub shaft j-ournaled in.n the bearing 129; 131l and 132 are gears rigidwith the shafts 127 and 130 respectively and meshing vwith each other; 133 is anpinio'n on the stub shaft 130; 134 is a gear keyed upon the camshaft 109 and adapted to be rotated bythe pinion 133; 135`is ashiftableclutch collar ofsuitable A design controlling the drivingconnection between the'stub shaft 130 and pinion 133; 136 is a shifterfork for the collar y135; 137 is a rockrshaft rigid with the-shifterfork 136 and extending transverselyof the frame 1 of the machine; and138is an operating lever rigid with the outer freee'nd of the rock shaft137.v 139 is a stub 'shaft journaled in the bearing 110; 140 is a pulleyrigid with the stubv shaft 139 and adaptfrorn asuitable source (notshown) by a belt 141; 142 is a pinion rigid with the stub shaft 139 attheV inner end thereof; and- 143 is a gear rigid with the shaft'127 andmeshing with the pinion 142.

In use, castings such as 144 constituting the work, are supplied to thechutes 72 andV 73 so that they may roll down the chutes for successiveengagement with the stops 74 and 75 respectively. fWhen the clutchcollar' 133' is actuated4 bythe lever 138 toy establish a Adrivingconnection between the vvStubshaft 130 andthe pinion 133 in mesh withthe camshaft gear 134, the camv 114 will actuate the lever 98 and willcause the gear sector 94 to lreciprocate the carriage 88 relative to thecollets 20 and 21 so that the drills 76 and77 respectively willalternately remove castings from the stops 74 and 75 respectively intothe collets 20 and 21 respectively. Rotation of the cam shaft`109 alsocauses the cams, 112' and 113 to reciprocate the links 124y and 125respectively so that the levers 66 and 67 will shift Vthe collars v.62and 63 respectively into and out of eng'agementgwith the dogs 56. vrlnthis cony nection it will be noted that the cam' grooves 115 and 116respectively in the 'cams 112 and 113 are oppositely arranged' sothatwhen Vone collar such as 62 is in engagement with Athe dogs 56 inthe 'collar 52;-the other'collar 63 is disengaged from the dogs 56 in'the collar 53. lInasmuch as the dogs 56 cause the rams 3'4 and 35respectively7 to move the collets n 2O and 21 respectively inwardlyagainst the conical faces 18 and' 1,9 of the 'faces 26 and 27 of saidcollets grip the castcompletion .oft-his drilling operation the cani 114will cause the carriage -88 to move in the opposite direction so thatthe drill '76 will be removed from the casting 144 in the collet 20 andwill cause the drill 77 to remove a -new casting from the stop 75 and toinsertthe said casting into the collet 21 so that it may be gripped bythe gripping surface 27 of said collet. During this operation the lever66 is moved by the cam 112 so 4that the collar 62 is disengaged from thedogs 56 in the collar 52,

and the lever 67 is moved by the cam 113 'so vthat the collar 63 isengaged' with the dogs 56 in the holder 53. As a result the casting 144in the collet 20 will be released by the-gripping surfaces 26 and thenew casting received in the collet21 will be securely held by thegripping surfaces27 of the collet 21. Rotation vof the cam' 114then 144in the collet 21; Continued operation ofthe machinecauses the carriage88 to be again movedto the left so that the drill 76 willremove a newcasting fromthe stop 74 and will insert it into the-collet 20. In

' doing so, the new casting abuts the drilled casting 144 in the collet20 and causes the said drilled casting'to be moved longitud-i-l nallyofI the collet toward the discharge opening 145 at the outer end ofthereduced portion 46 of the ram. Likewise continued operation of themachine causesl the carriage 88 to again be moved to the right so thatthe drill 77 will remove a new casting from the` stop and insertl itinto the collet 21 so that it may be gripped lby the gripping surface 27of-the'collet21. In doing this the new castingV will abut thedrilled'casting and will cause it -to be moved longitudinally of thecollet toward the. discharge opening 146 at the outer end of the reducedportion 47 of the ram 35. Any* .suitable means (not shown) may beemployed for receiving the drilled castings after they fall Vfrom thedischarge openings 145 and 146 respectively aforesaid.

Thus from the foregoing description it will be apparent that when onedrill is'withdrawn from the work the other drill is Y moved intoengagement-with the work and vice versa, and that the drilled castingsconstituting bushings are successively advanced longitudinally of thespindles from the respective collets to the discharge openings y145 andl146 respectively. In other words,n0 discharging time is lost.. When anew casting'is'inserted into-a collet itautomatically l causes a`drilled casting to `beddischarged from the machine -Any chips formed asa result of therdrill- Y ingy operations-l are free-to kwork .throughthe-slots- 24 and 25 respectivelyin the vcollet-S120 and21 and willbeiremoved `by centrifugal force f outwardly through Iholes 20 and 21yinthe caps 16 and 17. `Moreover,

the provision of the conical surfaces 40, 41,

42 and 43 respectively at the-forward ends of the sleeves28 and 29 andrains 34and 35VTV preclude such chips from binding v.at-these points andhave a tendency to deflect -the chips so that the may bedischargedthrough the slots, 24v an 25 and openings 205 and 21respectively. It lwill also be apparent* -toward and away from eachother when the bolts 8 arereleased. f n Y o In' Figures 4jto 6'inclusive Ihave illus'- trated aslight modification infwhi'ch cuttercauses thedrill 77 to be advanced further to eliec't the drillingoperation of the Vcasting Y bars 200v and 201respectively. havingcuttersare vutilized instead o f the drills 47 6 and 77 for forminglongitudinally extending .oilgrooves tubular castings 144.

1 As shown,

these cutter bars 200l and-201 are heldby plates 204 and 205 bolted tothe plate 206 carried by the slide 88. An auXiliary'slide 207 is carriedyby the plate88 andis alternately engageable with thefcaps 16 and l1788. Preferably the slide 207 is held -stationary by friction in the mainslide 88 while Vmoving between the caps 16-and 1 7Jand is" i ly of theauxiliary slide may be utilized as rams for alternately removing newVcastings from saidl stops and insertingthemv into the collets 20 and'21to be gripped 'by the surfaces -26 and 27 this construction the pulleys12 and 13`have been dispensed with entirely, and the spindles10 and 11vin this instance carry' 'gears Preferably L-shapedplates220and.221:'are

bolted to 'the carriagen88f'at oppositey ends i thereofyand cams 222 andy223 respectively are carried bythe upright portions of said platesV220A and 221: and vhave inclined cam respectively thereof. In-

l respectivelyV upon reciprocation of the `slide .110

210 andk 211 respectively whichfare engaged grooves 224 andy225.respectively therein that receive rounded end portions 226-` and227 respectively f the gearsectors 212 and 213.

ThusV with this construction when the-slide y 88 is reciprocated thecams 222 and 223carj i'ied thereby will cause the gear sectors 212and-2l3g to rock upon their pivots y214 and 215,.-and rotate the gearswith the spindles10. and 11 so that thev castings `144 r.will begiven-afquarter turn as the cutters 202 and 203 are advancedlongitudinally of said` castings. Asa result the cutters 202 and 203form longitudinallyextending spiral grooves in the castings 144. Y Inuse, when thecarriage 88 isinoved to the left by the gear sector 94actuated by the ca m 114 the auxiliary slide 207 will be `heldbyiriction in themain slide88 and Will remove a new casting from thestop 7 4 and will insert it into the collet 20. Upon abutting the cap 1Gthe auxiliary slide'207 will remain stationaryand` continued movement ofthe main slide- 88 relative thereto causes kthe cutter bar 200 to be;advanced into and Ilongitudinally `of the casting 144.l

main'slide 88 moves to the left vthe plate 220 will also move therewithso that the cam 222 As the will cause the sector 212 tofrotate thespindle -10 so that the bushing 144 will be correspondingly rotated. Asa result, the cutters Y 202 upon diainetrically opposite sidesof the4cutter bar 200 will Vtorni a longitudinally extending spiral groove-inthe casting. 144 as it is` advanced longitudinally thereoi.

. The main lslide 8,8'w'illthen be moved by the gear sector 94 to theright and in doing so will causethe auxiliary slide 207to movetherewith, andwill cause thecutter bar 200 to be withdrawn from thegrooved casting 144. The auxiliary slide 207 will be held.

by friction inthe main slide 88 and will remove a new casting from thestop'k 75- and will insert itinto the collet 21.- Upon engagement'of theend 209' of. the auxiliary v, `slide1207 with'the cap 17,. the auxiliary.slide 207 will remain stationary while the main slide 88 will continueits movement to the.

right and will cause Vthecutter .bar 201 to be advanced intoandlongitudinally of the new casting144in the collet 21 4so that thelongitudinally extending spiralA groovefmay be. vformedtherein uponrotation of they spindle xllfby thel gear sector Y previously:described. as in the'eonstruction" iilustrated in Figures 1 to 3inclusive the grooved eastings144 are -213 in ,the vmanner In thisconstruction,

advanced longitudinally of the collets to the discharge openingsv 145andk146 respectively 'as the new castings are inserted-.into therespective-collets; by the yauxiliary slide 207.

Thus the modified construction has the Ysame advantages fromy an.eliieiency standpoint yas the construction illustrated in Figures 1 toY3 inclusive.

i While it is,loelieved'v that from the ore'gof l 210 and ,211 rigid YApair of spaced ingrv description the nature and'advantages of theinvention will be readily apparent, I desire to have it-understood thatI do not limit myself to what is herein shown and described and thatsuch changes may be resorted to when desired as fall within the scope ofwhat is claimed. p -Y lVhat I kclaimas myinvention is: Y. j 1. Inamachineot the class described, a

head, a spindle mounted to turn in said head,

a Vcap carried by the spindle, work gripping means including a colletmovable longitudinally of the spindle andoperable upon engagement withthe cap to grip the work, and actuating means orthe collet including awork receiving member movable in the lhead as al follower :for thecollet, `said longitudinally movable member lhaving inclined lmeans :tordetlecting toward said collet chips and othery particles removed fromthe work while gripped by said collet, and said collet and cap havingregistering openings permitting said chips and other particles to bedischarged. laterally outwardly therefrom. v j j 2. In al machine of theclass described, a pair of spaced heads, work gripping means carried bysaid heads, work chutes adjacent saidk heads, a carriage movable betweensaid heads, and tools non-rotatably carriedV by said carriage Yforremoving Work from said the gripping means in said heads.

3. In' a machine of the class described, a heads, means in saidheads forgripping the work, a carriage movable between 'said heads, work engagingtools carried by said carriage and alternately engageable with'work heldby said gripping means, and actuating means for the carriage including arackV carried by the carriage, a gear sector engaging therack, a camspaced from the gear sector, and an Yadjustable driving connectionbetween said cam and gear sector.

. 4. -In a machine of the class described, a pair'of spaced heads,work-gripping means carriedby said heads, a reciprocating' carriage,`between said heads, tools `projecting .from opposite endsoif said carriageforengagement withV work in .said gripping means, arotary cam, andadriving connectionbetween thev cam and carriage adjust- GEORGE F.YAGER.

Ychutes and moving itinto engagement with Y Ill)

